package cn.tedu.order.service;

import cn.tedu.order.entity.Order;
import cn.tedu.order.feign.AccountClient;
import cn.tedu.order.feign.EasyIdClient;
import cn.tedu.order.feign.StorageClient;
import cn.tedu.order.mapper.OrderMapper;
import io.seata.spring.annotation.GlobalTransactional;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;


@Service
public class OrderServiceImpl implements OrderService {
    @Autowired
    private OrderMapper orderMapper;
    @Autowired
    private EasyIdClient easyIdClient;
    @Autowired
    private AccountClient accountClient;
    @Autowired
    private StorageClient storageClient;

    @Override
    @GlobalTransactional  //启动seata全局事务
    @Transactional        //控制本地事务
    public void create(Order order) {
        // TODO: 远程调用全局唯一id发号器获得id，这里暂时随机产生一个 orderId
        String s=easyIdClient.nextId("order_business");
        Long orderId=Long.valueOf(s);
        order.setId(orderId);

        orderMapper.create(order);

        // 修改库存
        storageClient.decrease(order.getProductId(), order.getCount());

        // 修改账户余额
        accountClient.decrease(order.getUserId(), order.getMoney());


        //Long orderId = Long.valueOf(new Random().nextInt(Integer.MAX_VALUE));
        //Long orderId=Math.abs(new Random().nextLong());//abs() ： 绝对值
        //order.setId(orderId);
        //orderMapper.create(order);

        // TODO: 远程调用storage，修改库存

        // TODO: 远程调用account，修改账户余额

    }
}
